Wrapping wire



INVENTOR Aug. 7 16, 1927.

W. E. PETTENGILL WRAPPING WIRE Filed July 27, 1926 Patented Aug. 16, 1927.

-WAIJTERLE. .rnrrnnernn, or EAST rnoyrnnncn, RHODE ISLAND.

wRArrING WIItE.

Application vfiled July 27, 1926. Serial no. 125,296;

This invention relates to a machine for wrapping a covering about a strand of wire; and the object of this invention 18 to provide a wrapping head through which the wire' passes, which has a presser member so mounted that'it will exert an even pressure on the face.

A further object of the invention is to provide aconstruction in which the springs for exerting pressure on the presser mem- 'bermay be of such form or shape that they will not be easily broken.

A stillffurjther object of the invention s to provide .a construction in which the springs, presser .memben and other parts may be easily replaced and a-d usted.

With these and other objects in view, the invention consists'oit' certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claims.

' In the accompanying drawings:

7 Figure 1 is a side elevation illustrating the wrapping head, yarn and fiyer in their relative working positions.

Figure1l2 is a perspective view ofthewrappinghea'd showing hportion cutaway for the" leading of the covering yarn to the wire.

"Figure 3 is aperspective view of theopposite side ofthe wrapping head with the presser member removed.

Figure 4 is a perspective view ot the presser member its pivot pin, springs and rod for mounting it in the body of the wrapping head.

.Figure 5 is a perspective view of the presser member.

Figure 6 is a sectional side elevation showing the position of the presser member on the body of the wrapping head and also showing a set screw for holding the rod for covered wire along its entire pressing mounting the springs in different positions e -w1thoutremoving-thehead. The body of of adjustment. I

Figure 7 is a sectional elevation at right angles to that shown in Figure 6 showing the set screws for retaining the springs in both the pivot pin for the presser member and the mounting rod.

Figure 8 is central sectional elevation of the presser member illustrating the bushing mounted therein. i

It is found in practice in of wrap-ping heads having the construction a presser .mem-

ber, desirable to so mount thepresser member-that there will be a substantially even pressure along its face; and to accomplish this result I have pivotally mounted the presse-r on an axis at rightsangles to the travel of the wire to be covered so that .it may swing freely on its pivot to evenly distribute the pressure applied to the pivot pin by means of a pair of springs for swinging the pivot towards the wire.

} 't'is also desirable to bush the opening in the wrapping head with a material harder than that of the body of the head so as to better resist the wear of the wire and its covering passing therethrough and also by this use of bushings having various sized openings to regulate the-size of the wireguiding opening to different sized wires; andftl ie following is a detailed description of one embodiment of this invention illuswire ll-whic'h is efthe package.

'sul-ating material to be wrapped about the passed through the center On the package spindle'there is mounted a wrapping head 12 having an opening lit therein through which the wire to be covered passes to be reeled on a drum 14 which may be Eocated at anysuitable place and driven by; means (not shown) A suitable bushing 1-5 of a than the body is inserted held by any suitable means material harder and removably in this opening 13 to resist the-wear of the wire and covering passing therethrough. It is understood that bushings havlng a guide opening suitable to the wireused will be utiiized and that these bushings may be varied at will the head is cut away as at 16 to permit the entrance of the strands of yarn 17 which are .led through the pigtail guide 18 of the 'flyer 1-9 in passing from the yarn package about the wire by; means wrap the covering thereon.

(not shown) As the covering is Wrapped on the wire, it is desirable to press or iron the covering, and to accomplish this result the body of the head and the bushing therein are cut away as at 20 and a presser member or block 21 is rotatably mounted on a pivot 22 which is carried by springs 28 and pressed into engagement with the wire by means of the springs,

The springs 23 are mounted in openings in the rod 2a which is rotatably mounted in the opening 25 in the body of the wrapping head. These springs may be adjusted to the desired tension by rotating the rod 24: in its opening or bearing 25 and when in its desired position set screws 26 are manipulated to engage the rod and hold the same in this desired position of adjustment.

The springs 23 are held in their openings in the mounting rod 24 and in pivot pin 22 by means of suitable set screws 27 and 28, respectively, by means of which any deslred adjustment may be obtained. In order that the yarn may be initially manually wrapped about the wire before mechanical rotation of the head, a slot 28 is provided connecting the openings 16 and 20 through which yarn may be manually led and wrapped about the wire beneath the presser before the machine is started, which initial turns are su'flicient to start the wrapping of the yarn on the wire.

I have illustrated the opening 16 as cut on an angle substantially that at which the yarn leads to the wire when the wrapping takes place by rotation of the yarn, flyer and head in one direction, but it is understood that there are right hand and left hand wrappings placed on the wire and the angle of the opening 16 may be opposite disposed in a wrapping head which is designed to be rotated in the opposite direction- From the foregoing it will be seen that I have provided a wrapping head which is simple in construction, one in which the springs have no sharp angles or bends to be easily broken and one in which the pressure of the presser member is such that an even distribution of pressure along its ironing face on the yarn is provided.

The foregoing description is directed sole-- ly towards the construction illustrated, but I desire it to be understood that I reserve the privilege of resorting to all the mechanical changes to which the device is susceptible, the invention being defined and limited only by the terms of the appended claims,

I claim:

1. In a wrapping machine, a wrapping head comprising a body through which the wire passes, a presser member, and spring means bodily carrying said member and yieldingly moving it into engagement with said wire after it has been covered.

2. In a wire wrapping machine, a wrapping head comprising a body through which the wire passes, a presser member, springs bodily car ying said member and moving it towards said wire, and means for adjusting the tension of said springsto vary the pressure on the wire. 7

In a wire wrapping machine, a wrapping head comprising a body through which the wire passes, a presser member, a pair of springs carrying said presser member and a rod rotatably mounted in said body and carrying said springs, and means for holding said rod in difierent positions of rotation to simultaneously adjust the tension on both springs for swinging the presser towards the IVlI'e.

4. In a wire wrapping machine, a wrapping head comprising a body through which the wire passes, and a presser member having a plurality of engaging faces pivotally mounted to have anyone of its. faces moved into working position.

5. In a wire wrapping machine, a wrapping head comprising a body through which the wire passes, a presser member having a plurality of working faces, means for mounting said member to permit of automatic adjustment to evenly distribute the pressure along its face and to permit it to be moved to change its working face.

6, In awire wrapping machine, a wrapping head comprising a body through which the wire passes, a pivot pin, a presser memher having a plurality of working faces pivotally mounted on said pin, and means for swinging said pin and member yieldingly into engagement with said wire after being covered.

7. In a wire wrapping machine, a wrapping head comprising a body having an axially disposed opening, a bushing of a material harder than the body in said ope11- ing through which the wire passes, a rod having spring wire openings therein rotatably mounted in said body, a spring in each of the rod openings, a pivot pin carried by said springs, a presser block pivotally mounted on said pin for engaging the wire after being covered, and a set screw in'said body engaging said rod to retain it in different positions of adjustment for varying the tension on the springs and the pressure on the covered wire.

8. In a wire wrapping machine, a wrapping head having a body with an axial opening therein, said body being cutaway on its opposite sides in staggered relation to the depth of said opening and having a slot joining said cut-away portions to permit the initial wrapping of yarn on the wire 9. In a wire wrapping machine, a wire wrapping head having a body with an axially disposed opening, said body being cut away at suitable parts to said axial opening and a removable bushing of a material harder than the body in said opening and away part and a. bushing positioned to have cut away at points to register with the cut its upper end substantially flush with the 10 away part of said body, upper end of the body and having a 10. In a wire wrapping machine, a wire portion cut away to register with the out A wrapping head having a body with an away part of the body.

axially disposed opening, said body being In testimony whereof I affix my signature. cut away to said axial opening at a suitable part, a presser working through said out WALTER E. PETTENGILL. 

